PhantomHoover

Add manifest files for Knossos mod manager

2

### Please confirm your submission meets all the criteria - [ ] I have read the [App Requirements][reqs] and [App Maintenance][maint] pages. - [ ] My pull request follows the...

Per GCC optimisation guide, which applies equally well to clang: * -funroll-loops should not be used unless directed by profiling. The compiler will already unroll loops when it's a good...